class_docstr: Base class for database framework wrappers.
  
  Attributes
  ----------
  host: str
     It can be either:
        1. Known hostname or IP address in which database server resides.
        2. URI: A database framework specific connection string.
  name: str
     Name of database containing experiments.
  port: int
     Port that database server listens to for requests.
  username: str
      Name of user with write/read permissions to database with name `name`.
  password: str
      Secret phrase of user, `username`.
docstr: Return dict of names and sorting order of indexes
  
  Parameters
  ----------
  collection_name: str
     A collection inside database, a table.
  
  Returns
  -------
  dict
      Dictionary of indexes where each key is the name in the format {name}_{order}
      and each value represents whether the index is unique.
docstr_tok: ["Return","dict","of","names","and","sorting","order","of","indexes","Parameters","--","--","--","--","--","collection_name",":","str","A","collection","inside","database",",","a","table",".","Returns","--","--","--","-","dict","Dictionary","of","indexes","where","each","key","is","the","name","in","the","format","{","name","}","_","{","order","}","and","each","value","represents","whether","the","index","is","unique","."]
code: def index_information(self, collection_name):
      """Return dict of names and sorting order of indexes
  
      Parameters
      ----------
      collection_name: str
         A collection inside database, a table.
  
      Returns
      -------
      dict
          Dictionary of indexes where each key is the name in the format {name}_{order}
          and each value represents whether the index is unique.
  
      """
      return self._db[collection_name].index_information()
  
imports: import logging
  from abc import abstractmethod, abstractproperty
  from orion.core.utils import Factory, GenericFactory
label_desc: Use image node_id 7 for calling the Database obj's underlying member method code with example usage: obj.index_information(collection_name) and returns: self